/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.googlecode.httl.support.caches;

import java.util.Map;

import com.googlecode.httl.support.Cache;

/**
 * MapCache. (SPI, Singleton, ThreadSafe)
 * 
 * @see com.googlecode.httl.Engine#setCache(Cache)
 * @see com.googlecode.httl.support.caches.StrongCache
 * @see com.googlecode.httl.support.caches.LruCache
 * 
 * @author Liang Fei (liangfei0201 AT gmail DOT com)
 */
public class MapCache implements Cache {

    private final Map<Object, Object> map;

    public MapCache(Map<Object, Object> map){
        if (map == null) {
            throw new IllegalArgumentException("map == null");
        }
        this.map = map;
    }

    public Object get(Object key) {
        return map.get(key);
    }

    public void put(Object key, Object value) {
        map.put(key, value);
    }

    public void remove(Object key) {
        map.remove(key);
    }

}
